Modern-day world football managers are split into two decisive camps when it comes to defending and marking. Most opt for man, some for zonal.
In truth, this debate only ever surfaces when a team concedes a goal from a corner kick, but the ideologies stretch much further than set pieces.
Marking is employed all over the pitch, with or without possession, and varies greatly with regard to circumstances.
Let's take a closer look at both approaches and determine which, if either, is more effective.